Camlok CR Single Rail Clamps

1000kg & 2000kg WLL | For Suspending Loads from Crane Rails | Available Standard or With Chain | CE Marked & LOLER Compliant

Product Overview

The Camlok CR single rail clamp is designed for suspending loads directly from a crane rail or beam during temporary lifting and rigging operations. Manufactured by Columbus McKinnon to industrial standards, the CR series provides a fast, certified attachment point that fits a wide range of common rail and beam profiles. Available as a standard clamp or pre-fitted with a connecting chain (W/ CHAIN variant) for rapid deployment.

Specifications by Model

Key Features & Benefits

• Single rail clamp design — specifically engineered for suspending loads directly from a crane rail or beam during rigging operations.
• Two capacity ratings — CR1000 at 1000 kg WLL and CR2000 at 2000 kg WLL, covering most light-to-medium-duty rail applications.
• Standard or pre-chained — choose the standard clamp for use with your existing rigging, or the W/ CHAIN variant for a ready-to-deploy connecting chain.
• Forged steel construction — for repeated lifting cycles and long service life.
• Certified and traceable — every clamp supplied with certification and identification for full LOLER traceability.

Typical Applications

Used in construction, fabrication, maintenance and industrial rigging where a temporary lifting or anchor point is required on a crane rail, runway beam, or similar steel section. Common applications include suspending hoists, lever blocks, pulley systems, or chain blocks from overhead rails for short-duration tasks where a permanent attachment point is not available.

How to Use Safely

1. Inspect the clamp before each use. Check the body, jaws, hinge mechanism, screw thread, and any supplied chain for damage, wear or corrosion. Do not use if defects are found.
2. Ensure the rail or beam profile is suitable for the clamp. Verify that the rail/beam material and section are rated to carry the applied load.
3. Open the clamp jaws fully, position the clamp over the rail flange, and tighten the screw to engage the jaws firmly against the rail.
4. Confirm secure attachment by light testing before applying the full load. The clamp should not slip or rotate.
5. For the W/ CHAIN variant, the supplied chain provides the connection point for the load below. For the STD variant, attach your rigging directly to the clamp's lifting eye via a suitable shackle.
6. Apply the load progressively. Monitor the clamp throughout the operation for any signs of movement, deformation or slip.
7. After use, fully relieve load before loosening the screw and removing the clamp from the rail.

Inspection & Maintenance

A visual inspection is required before every use. A thorough examination by a qualified engineer is required at least every 6 months in regular use, in accordance with LOLER 1998. Records of examination must be kept. Refer to the manufacturer's manual for detailed inspection and maintenance instructions, derating factors for use, and replacement schedules for any wearing components.

Warranty & Support

Supplied with manufacturer's certification, identification, and operating instructions. WOLFF Onsite offers post-sales support including spares, certified inspection, and replacement. Contact our team for advice on selection, sizing, and application-specific configurations.

Downloads & Resources

• User Manual (PDF)
• Product Catalogue (PDF)

Frequently Asked Questions